Ilmari Karonen schreef:
URL + MIME type, plus possibly some explanatory text,
should really be
enough for any CAPTCHA. They're supposed to be pretty self-explanatory
anyway.
One could even use "data:" URLs for short in-line CAPTHAs if one wanted.
Text responses (text/plain for SimpleCaptcha and text/tex for
MathCaptcha) are currently presented using the 'question' field rather
than the 'url' field.
Roan Kattouw (Catrope)